#include <windows.h>
#include <iostream>

using namespace std;

int a[10] = {-2,8,7,0,4,6,18,20,-8,5};
int A;
HANDLE hSemaphore;
CRITICAL_SECTION cs;
DWORD WINAPI work(LPVOID)
{
	printf("input sleep:");
	int t;
	scanf_s("%d", &t);
	int i, k = 0;
	for (i = 0; i < 10; i++)
	{
		if (a[i] > A)
		{
			a[k] = a[i];
			k++;
			ReleaseSemaphore(hSemaphore, 1, NULL);
			Sleep(t);
		}
	}
	for (i = k; k < 10; k++)
	{
		a[k] = 0;
		ReleaseSemaphore(hSemaphore, 1, NULL);
		Sleep(t);
	}
	return 0;
}
DWORD WINAPI SumElement(LPVOID)
{
	int sum_elem = 0;
	EnterCriticalSection(&cs);
	for (int i = 0; i < 10; i++)
	{
		sum_elem += a[i];
	}
	LeaveCriticalSection(&cs);
	printf("Sum = ");
	printf("%d\n", sum_elem);
	return 0;
}
int main()
{
	int i;
	HANDLE	hWork, hSum;
	DWORD	IDThread;
	printf("An initial state of the array: ");
	for (i = 0; i < 10; i++)
		printf("%d ", a[i]);
	printf("\n");
	printf("Input A: ");
	scanf_s("%d", &A);
	hSemaphore=CreateSemaphore(NULL, 0, 10, NULL); 
	if (hSemaphore == NULL) return GetLastError();
	hWork = CreateThread(NULL, 0, work, NULL, 0, &IDThread);
	hSum = CreateThread(NULL, 0, SumElement, NULL, 0, &IDThread);
	if (hWork == NULL) return GetLastError();
	if (hSum == NULL) return GetLastError();
	InitializeCriticalSection(&cs);
	for (i = 0; i < 10; i++)
	{
		EnterCriticalSection(&cs);
		WaitForSingleObject(hSemaphore, INFINITE);
		printf("%d ", a[i]);
		cout.flush();
		LeaveCriticalSection(&cs);
	}
	printf("\n");

	CloseHandle(hSemaphore);
	CloseHandle(hWork); 
	CloseHandle(hSum);
	DeleteCriticalSection(&cs);
	//WaitForSingleObject(work, INFINITE);
	scanf_s("%d", 00);
	return 0;
}